Heater



Patented Feb. 1,1921,

f g -75 Nata.

Amara.

UNITED *STATES PATENT OFFICE.

ROBERT JOSEPH NOTT, OF VICTORIA, BRITISH COLUMBIA, CANADA.

HEATER.

Application filed April 24,

To all w ham it may concern:

Be it known that I, ROBERT JOSEPH Norm, a subject of the King of Great Britain, and a resident of the city of Victoria, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Heaters, of which the following is a specification.

My invention relates to improvements in heaters, with particular reference to those used in heating water by steam, as in hot water heated buildings, and the object of my invention is to provide a simply constructed heater possessing the maximum heating surface and which enables great economy to be eflected by its use.

I attain this object by the construction illustrated in the accompanying drawings in which- Figure 1 is an outside view of the heater.

Fig. 2 is a View with the shell removed.

Fig. 3 is a sectional elevation taken on the longitudinal center line.

Fig. 4 is an end view of the small header.

Similar figures of reference indicate similar parts throughout the several views.

1 indicates a header having apertures 2 and 3 to which the water pipes 4: and 5 ol' the hot water system are connected and rovided with a flange 6 by means of whic i it may be secured to the flange 7 of an outer shell 8, the connection being made by means of suitable bolts 9, as shown in Fig. 1. The header is also provided with a flange 10, to which is also bolt-connected by means of a flange 11 a plate 12 formed convex so that a space 13 is provided between the outer end face of: the header and the inner surface of the plate, this space being divided by a diaphragm 14, into the upper division 15 to which space is led a steam pipe 16. The lower division is indicated by the numeral 17.

Secured into the rear face of the header 1 are the ends of a plurality of longitudinal pipes 18, the opposite ends of which are se cured into the forward side of a smaller header l9 and support the same, the in- Specification of Letters Patent.

Patented Feb. 1, 1921.

1919. Serial No. 292,463.

terior of each pipe communicating with the inter or of each header 1 and 19 while secured into the forward and rear sides respectively of these headers and extending through the pipes 18 are smaller pipes 20, the interiors of which communicate with the spaces 15 and 17 and a space 21 provided between the small header 18 and the inner end of the shell 8, as shown more particularly in Fig. 3. 22 indicates a pipe for drawing ofl? any condensation which takes place in the shell.

The operation of the heater will be apparent as it will be seen that water circulated through pipes 4 and 5 first of all also circulates through the large pipes 18 into the header .19 back through the pipes 18 into the header 1 again, while steam admitted into space 15 will pass through the small pipes 20 into the space 21 and the shell surrounding the large pipes, a large heating surface and double return action being thus obtained so that quick heating with. great economy is secured.

What I claim as my invention is:

A heater comprising spaced headers of different diameters and having water chambers therein, pipes establishing communication between said chambers and extending between the inner walls of the headers, smaller pipes within said first-mentioned pipes extending between the outer walls oi the headers, a plate secured to the outer wall of the larger header and having the central. portion offset from said wall to provide a steam chamber in communication with said smaller pipes, and an imperlorate shell. inclosing the smaller header and the pipes and having one end closed and spaced from the outer wall of the smaller header, the other end of the shell being open and detachably secured to the larger header, steaniinlet means for said steam chamber and water inlet and outlet connections for said larger header.

Dated at Victoria, B. C., this 14th day of April, 1919.

ROBERT JOSEPH NOTT. 

